/*
  Proj1.C
  Project 1, CMSC-341, Spring, 2001
  This file contains the main function.
  Mitch Edelman
  Created:  January 22, 2001
  Current:
*/

#include "Set.H"
#include "Proj1_aux.H"



#include <cstdlib>  // for random
#include <iostream.h>
#include <fstream.h>
#include <iomanip.h>
// Command line argument is an int, the number of
// elements to be inserted in the Sets.
int main(int argc, char **argv)
{
  int i;

  // Read the number of elements from the command line
  if(argc !=3) {
    cerr << "Invalid number of command line arguments\n"
         << "Usage is Prog1 <number of items for first test> <filename for 2nd test>]n"
         << "Aborting" <<endl;
    exit(1);
   }
  int numbElems = getNumbElems(argc, argv);

  cout << "  ---  " << "Constructing an empty set, set1" << endl;
  Set<int> set1;

  cout << "Set1 = " << set1 <<endl;
  if (set1.isEmpty())
    cout << " is empty" << endl;
  else
    cout << " is not empty" << endl;

  cout << "  ---  " << "Inserting " << numbElems <<
    " values into set1" << endl;
  for (i = 0; i < numbElems; i++)
    set1 = set1+rand()%25;

  cout << "set1 = " <<endl;
  set1.print(cout);  // test the print methods of set
  if (set1.isEmpty())
    cout << " is empty" << endl;
  else
    cout << " is not empty" << endl;

  cout << "  ---  " << "Searching for values in set1" << endl;
  for (i = numbElems - 1; i < numbElems + 1; i++)
    {
      if (set1.isMember(i))
	cout << i << " is present" ;
      else
	cout << i << " is not present";
      cout << " in set1" << endl;
    }

  {
    // This is being done in a separate block so Set
    // destructor will be invoked before program termination
    // process begins.
    cout << "  ---  " << "Assigning set2 = set1" << endl;
    Set<int> set2;
    set2 = set1;
    cout << "set2 = " << set2 << endl;

    cout << "  ---  " << "Removing 3 from set1 (if there)" << endl;
    set1 = set1 - (3);

    cout << "set1 = " << set1 << endl;
    cout << "set2 = " << set2 << endl;
  }

  cout << "  ---  " << "Making set1 empty" << endl;
  set1.MakeEmpty();
  cout << "set1 = " << set1 << endl;



  cout << "  ---  " << "Constructing Set of strings strSet";
  cout << endl;
  Set<string> strSet;
  string FileName = getFileName(argc, argv);
  ifstream Infile (FileName.c_str(), ios::in);
  if (! Infile){
  	cerr<<"cannot open " << argv[2] << " for input" <<endl;
   cerr<< "Program terminating" << endl;
   exit(1);
   }
  cout << "\n\n\n  ---  " << "Inserting strings into strSet" << endl;
  string NextString;
  char buffer[100];
  while (Infile.getline(buffer,100)) {
  	NextString = buffer;
   strSet= strSet+NextString;
   }
  Infile.close();
  cout << "There are now " << strSet.size() << " elements in strSet" <<endl;
  cout << "The set is " << strSet <<endl;
  cout << "\n\nCreating set of just 2 strings, george and al" << endl;
  Set <string> strSet2;
  strSet2 = strSet2 + "george";
  strSet2 = strSet2 + "Al";
  cout << "\n\n\n\ntesting set equality on string sets" << endl;
  if (strSet2 == strSet)
  	cout << "StrSet2 == strSet" << endl;
  else
  	cout << "StrSet2 != StrSet1" << endl;

  cout << " Testing set union on string sets" << endl;
  Set <string> strSet3;
  strSet3 = strSet3 + "Bill";
  cout << "Set 2 = " << strSet2 << endl;
  cout << "Set 3 = " << strSet3 << endl;
  cout << "Union = " << strSet2 + strSet3 << endl;

  cout << "\n\n\n\nTesting Set Intersection on sets of strings\n";
  cout << "Next Intersection should be empty" << endl;

  cout << "set2 *set3  = " << strSet2 * strSet3 << endl;
  cout << "\n\n\n\nA more interesting intersection test " << endl;
  strSet2 = strSet2+"Max";
  strSet3 = strSet3 + "Max";
  cout << "Set2 = " << strSet2 << endl <<
    "\tSet3 = " << strSet3 << endl;
  cout << "Set2 * Set3 = " << strSet2 * strSet3 << endl;

  cout << "\n\n\n\nTest Set Difference " << endl;
  cout << "Subtract set from itself - should get empty set" << endl;
  cout << "set2 - set2 = " << strSet2 - strSet2 << endl;
  cout << "Set2 - Set3 = " << strSet2 - strSet3 << endl;
  cout << "Set3 - Set2 = " << strSet3 - strSet2 << endl;

  cout << "enough testing! Program Terminating" << endl;

}